Emerson Rosemount FOUNDATION 848T Quick Start Manual page 30

Quick Start Guide
6.7.2 IG IECEx FISCO Intrinsic Safety
Certificate
Standards
Markings
Special Conditions for Safe Use (X):
1. The equipment must be installed in an enclosure that provides a
degree of protection of at least IP20. Non-metallic enclosures must
be suitable to prevent electrostatic hazards and light alloy or
zirconium enclosures must be protected from impact and friction
when installed.
2. The equipment is not capable of withstanding the 500 V insulation
test required by EN 60079-11:2012, clause 6.3.13. This must be
taken into account when installing the equipment.
6.7.3 N7 IECEx Type n (with enclosure)
Certificate: IECEx BAS 09.0032X
Standards: IEC 60079-0:2017, IEC 60079-7:2017, IEC 60079-15:2010
Markings:
Special Conditions for Safe Use (X):
1. The equipment must only be installed and used in an area of
pollution degree 2 or better, as defined in IEC 60664-1.
2. Provision must be made, external to the apparatus, to ensure the
rated voltage of the apparatus supply is not exceeded by transient
disturbances of more than 40 percent.
3. The electrical circuit is connected directly to earth. This must be
taken into account when installing the apparatus.
30
IECEx BAS 09.0030X
IEC 60079-0:2017, IEC 60079-11:2011
Ex ia IIC T4 Ga (-50 °C ≤ T
FISCO (input)
U = 17.5 V
i
I = 380 mA
i
P = 5.32 W
i
C = 2.1 nF
i
L = 0
i
Ex nA IIC T5 Gc (-40 °C ≤ T
T ≤ +65 °C)
a
≤ +60 °C)
a
Sensor field terminal (output)
U = 12.5 V
O
I = 4.8 mA
O
P = 15 mW
O
C = 1.2 μF
O
L = 1 H
O
≤ +65 °C), Ex ec IIC T5 Gc (-40 °C ≤
a
December 2021
Rosemount 848T